CONTROL LINE AEROBATICS RECENTLY ACQUIRED some perfect quarter-grain wood Ive ever Riley Wootens Lone Star Balsa supplied originally ordered wing rib stock such beautiful wood use other things ready start new Caudron built-up stabilizer/elevators Since prefer flat stab light quarter-grain A6 wood seemed excellent choice stiff light stab important honest-flying airplane thought perhaps could adjust interior structure take advantage super-stiff skin latest stab utilized outline inforced 007 carbon main spar ribs arranged geodetic pattern used Dremel tool Swiss cheese internal structure gram saved juncture order 24 grams because weight required sustain optimum center gravity moment multipliers closed structure top sheet flat surface After pausing glue set checked flatness stab long straightedge goal have no light surface stab wasnt perfectthe tips out 015 inch wasnt much sol started what odyssey Since surface sheeted much internal support sand very carefully long foam block best choice sort project sanded tips side center other thought would very straightforward evaluated sanding thought needed sand little After few passes realized something strange going onthe stab bowing away area sanded stiff stab tip-to-tip torsionally sol didnt understand next corrective action soak structure ammonia pin structure surface opposite set bow original bow initially leveled returned finally realized problem perfect wood nature quartergrain irregular layers stress-relieving wood sanded bowed didnt know since Id never acceptable quarter-grain wood moral story use good A-grain wood construction built-up surfaces rather long introduction focus selecting wood specific spots airplane will make best overall model along few construction hints Using four lhicu ft contest wood always best area airplane dont get wrongIll take light stuff can get start ribsif theyre accurate can determine strong wing will always look light /16 quarter-grain wood Grade wood weight hardness/stiffness Generally heavier wood should outboard panel ribs stiffest/hardest wood should center ribs wood allocated proper 120 Model Aviation Strickland N Hollywood CA built Brodak Galaxy wife Sylvia Shes thrilled Magnum 28 34 ounces Sig finish Gene Martine known classically-executed design Randy Smith SV-11 PA 40 tuned pipe top 20 Nats Wynn Pauls latest PAMPA Wagonsuccessful design took years develop Seventh NatsPA 40 pipe Don McClave created another VSC award-winner Fierce Arrow Tissue clear finish elegant simplicity Has Fox 35 locations lay out rib patterns have accept some wood may go scrap paying attention graindo squeeze extra rib angling across grain Keep running lengthwiselchordwise unusual stress can set up wing Ensure outlines accurate cutouts spars etc good fits lightening holes rounded use straight-line connections area wing will shatter heavy impact remainder wing ribs choose wood youre going use position heavier sheets outside thickness use 1/16 smaller airplanes 077 Lone Star Balsa piped 40s above remainder wood will Agrain Sheets should flexible conform curvature ribs best weight order six pound stock because softer wood although lighter has tendency dip between ribs molded leading edges sand male mold until get shell installed several coats dope wing normal planked leading edges should carefully sanded foam blocks Pay special attention laying out sheets grain should run parallel leading edge molded conventional planked wings trailing-edge stock run grain spanwise As wing assembled will minimum stress induced structure reducing tendency warp flaps Ive changed choice wood grain weight etc throughout years Flaps have stiff must have same amount flex sounds odd though stiff can flex predictable honest airplane depends good flaps flexes other model will have rolling tendency will able trim out difference flap flexibility marked roll will present some degree weather flexibility difference subtle roll will manifest itself heavy weather Pick finn straight-grain wood use matched sheets Again 6-8 lb stock will fine Lay out sheets grain runs parallel trailing edge ensures less change internal stress flap sanded grain layouts matching sheets should mirrored method use shape flaps described Ted Fancher Model Aviation years agousing three sizes tube/wire form sanding jigs example 3/ sheet start tube hinge line trailing edge makes first triangle Flip surface use 1A wire trailing edge will produce triangular section trailing edge centered hinge line very careful flaps center down trailing edge wing dont will able trim model could devote entire column great new kits value priced $1795 available better hobby shops around world available locally order direct Include $450 shipping kit $650 two kits Foreign orders contact us foi actual shipping full line catalog $200 ENGINEERING CORP 1431 CHAFFEE DR SUITE #3 q1HERR TITUS VILLE FL 32780 407-264-2488 May1997 121 Five Fantastic Flying Favorites Worlds Leading Manufacturer Laser Cut Rubber Powered Model Aircraft 1937 QUAKER 84 L*Authentic Waterslide Decalas* Plus 5Li9 SPECIFICATIONS Engine 50 61 2 cycle 70 80 4 cycle Radio 3-Channel B & M MULJIL Co 290 W 1050 N LAYTON UT 84041 Phone 801-544-5689 Send $300 Color Brochure Models UT RES ADO 6125% TAX Laser Cut Rubber Powered Flying Models Kit #201 Over 70 Laser Cut Parts Kit #202 Over 60 Laser Cut Parts Kit #203 Over 50 Laser Cut Parts Kit #204 Over 50 Laser Cut Parts Kit #205 Over 50 Laser Cut Parts Introducing five laser cut kits biggest new name Free Flight Aircraft.Dumas Products walnut scale 17- 1/2 wing span models come Precision Laser Cut Parts hand selected balsa injection molded propeller FAt Contest rubber plastic wheels vacuum molded plastic parts full color peel stick decal set light weight colored tissue comprehensive plans instructions rubber powered kit Call today 1-800-458-2828 Ext 800 ask information packet Dumas line Rubber Powered Flying Models dumas aircraft DUMAS PRODUCTS INC 9O9AMA E 17th St Tucson AZ 85719 Phone 520-623-3742 Fax 520-620-1329 E-MAIL dumas@azstarnetcom 122 Model Aviation LW] JE I L Ic SPCIALISTS IN COX AND AME ENGINES & CUSTOM PARTS COMPETITION ACCCESSORIES RACING WHEELS SOLID LINES CUSTOM NEEDLE VALVES OLD TIMER KITS & SUPPLIES COILS CONDENSERS PLUGS SILK QUALITY DOPE BRUSHES TRANSISTOR IGNITION SYSTEMS 112A TEXACO PLAYBOY SR KIT PH 619 761-0511 FAX 761-0937 VISA IMC WELCOME NO COD MINIMUM ORDER $1000 PLUS $300 SHIPPING INSURANCE $200 CUSTOM LETTER TODAV.TI-fE VINYL WRITE WAY AMA Since 1987 mail order company providing modeler EZ p ply custom lettering logos stars etc choices type styles & colors decal custom cut pre-aligned & pre-spaced premium vinyl planes boats trains toys etc Heights 1/4 12 Priced right eg AMA er 1 high $250. color style Find out what can Sample infopack free Please include #10 SASE inquiries U 16043 TULSA STREET GRANADA HILLS CA 91344 818-363-7131 - Mon Thur 1O-4pm PST EMAIL vinylrt@datadepotcom Plus $2 P/H Ca res add lax fuselage sides building stiff fuselage would still cover few approaches As part airplane fuselage should true light stiff built-up fuselages i/ sheet has served well years can dealt now Unless youre going build 35-size aircraft will need sheets longer standard 36 inches wider standard 3 inches However use modem adhesives satisfactory sides can made careful splicing Rather quarter-grain wood usually look 4-5 lb/cu ft A-grain flat straight Accuracy critical never assume straight edge will remain straight after cut Cut long edge straightedge relieve stress lay out sidesmatching sheets ideal flaps However before layout check weight blanks end-to-end Put heavy end front Double-check dimensions wood Ive really good wood just short wide enough concluded litfie splicing right spot acceptable length adjustment always front right plywood doubler essentially filler area heavily contoured reinforced glass carbon good wood out itself serving useful purpose Ive seen various approaches stiffen fuselage rear wing back first eastern ladder approach certainly did make rigid structure also geodetic positioning formers significantly increasing number formers effective increase parts count weight After contemplating construction Aldrich Magnum built much like Free Flight model concluded very rigid light structure can achieved paying attention certain details key fonners Connect top fuselage bottom providing torsionally stable section crutch used sure place formers upper lower fuselage shells molded blocks directly connected crutch critical Years ago thought cross-section rear increased stiffuess would also increase did point inch stabilizer leading edge practical limit increase stiffuess proportional increase width marked strength increase can obtained reinforcing structure aft stabilizer leading edge establish box section area use area doubler 1/s plywood lightening holes runs chord stab elevators sides vertical former stab leading edge just ahead elevator trailing edge mounting plate Yis plywood tail wheel wire locks above pieces forming rigid box next column Ill continue construction techniques look build light structure *
Edition: Model Aviation - 1997/05
Page Numbers: 120, 121, 122
Edition: Model Aviation - 1997/05
Page Numbers: 120, 121, 122
CONTROL LINE AEROBATICS RECENTLY ACQUIRED some perfect quarter-grain wood Ive ever Riley Wootens Lone Star Balsa supplied originally ordered wing rib stock such beautiful wood use other things ready start new Caudron built-up stabilizer/elevators Since prefer flat stab light quarter-grain A6 wood seemed excellent choice stiff light stab important honest-flying airplane thought perhaps could adjust interior structure take advantage super-stiff skin latest stab utilized outline inforced 007 carbon main spar ribs arranged geodetic pattern used Dremel tool Swiss cheese internal structure gram saved juncture order 24 grams because weight required sustain optimum center gravity moment multipliers closed structure top sheet flat surface After pausing glue set checked flatness stab long straightedge goal have no light surface stab wasnt perfectthe tips out 015 inch wasnt much sol started what odyssey Since surface sheeted much internal support sand very carefully long foam block best choice sort project sanded tips side center other thought would very straightforward evaluated sanding thought needed sand little After few passes realized something strange going onthe stab bowing away area sanded stiff stab tip-to-tip torsionally sol didnt understand next corrective action soak structure ammonia pin structure surface opposite set bow original bow initially leveled returned finally realized problem perfect wood nature quartergrain irregular layers stress-relieving wood sanded bowed didnt know since Id never acceptable quarter-grain wood moral story use good A-grain wood construction built-up surfaces rather long introduction focus selecting wood specific spots airplane will make best overall model along few construction hints Using four lhicu ft contest wood always best area airplane dont get wrongIll take light stuff can get start ribsif theyre accurate can determine strong wing will always look light /16 quarter-grain wood Grade wood weight hardness/stiffness Generally heavier wood should outboard panel ribs stiffest/hardest wood should center ribs wood allocated proper 120 Model Aviation Strickland N Hollywood CA built Brodak Galaxy wife Sylvia Shes thrilled Magnum 28 34 ounces Sig finish Gene Martine known classically-executed design Randy Smith SV-11 PA 40 tuned pipe top 20 Nats Wynn Pauls latest PAMPA Wagonsuccessful design took years develop Seventh NatsPA 40 pipe Don McClave created another VSC award-winner Fierce Arrow Tissue clear finish elegant simplicity Has Fox 35 locations lay out rib patterns have accept some wood may go scrap paying attention graindo squeeze extra rib angling across grain Keep running lengthwiselchordwise unusual stress can set up wing Ensure outlines accurate cutouts spars etc good fits lightening holes rounded use straight-line connections area wing will shatter heavy impact remainder wing ribs choose wood youre going use position heavier sheets outside thickness use 1/16 smaller airplanes 077 Lone Star Balsa piped 40s above remainder wood will Agrain Sheets should flexible conform curvature ribs best weight order six pound stock because softer wood although lighter has tendency dip between ribs molded leading edges sand male mold until get shell installed several coats dope wing normal planked leading edges should carefully sanded foam blocks Pay special attention laying out sheets grain should run parallel leading edge molded conventional planked wings trailing-edge stock run grain spanwise As wing assembled will minimum stress induced structure reducing tendency warp flaps Ive changed choice wood grain weight etc throughout years Flaps have stiff must have same amount flex sounds odd though stiff can flex predictable honest airplane depends good flaps flexes other model will have rolling tendency will able trim out difference flap flexibility marked roll will present some degree weather flexibility difference subtle roll will manifest itself heavy weather Pick finn straight-grain wood use matched sheets Again 6-8 lb stock will fine Lay out sheets grain runs parallel trailing edge ensures less change internal stress flap sanded grain layouts matching sheets should mirrored method use shape flaps described Ted Fancher Model Aviation years agousing three sizes tube/wire form sanding jigs example 3/ sheet start tube hinge line trailing edge makes first triangle Flip surface use 1A wire trailing edge will produce triangular section trailing edge centered hinge line very careful flaps center down trailing edge wing dont will able trim model could devote entire column great new kits value priced $1795 available better hobby shops around world available locally order direct Include $450 shipping kit $650 two kits Foreign orders contact us foi actual shipping full line catalog $200 ENGINEERING CORP 1431 CHAFFEE DR SUITE #3 q1HERR TITUS VILLE FL 32780 407-264-2488 May1997 121 Five Fantastic Flying Favorites Worlds Leading Manufacturer Laser Cut Rubber Powered Model Aircraft 1937 QUAKER 84 L*Authentic Waterslide Decalas* Plus 5Li9 SPECIFICATIONS Engine 50 61 2 cycle 70 80 4 cycle Radio 3-Channel B & M MULJIL Co 290 W 1050 N LAYTON UT 84041 Phone 801-544-5689 Send $300 Color Brochure Models UT RES ADO 6125% TAX Laser Cut Rubber Powered Flying Models Kit #201 Over 70 Laser Cut Parts Kit #202 Over 60 Laser Cut Parts Kit #203 Over 50 Laser Cut Parts Kit #204 Over 50 Laser Cut Parts Kit #205 Over 50 Laser Cut Parts Introducing five laser cut kits biggest new name Free Flight Aircraft.Dumas Products walnut scale 17- 1/2 wing span models come Precision Laser Cut Parts hand selected balsa injection molded propeller FAt Contest rubber plastic wheels vacuum molded plastic parts full color peel stick decal set light weight colored tissue comprehensive plans instructions rubber powered kit Call today 1-800-458-2828 Ext 800 ask information packet Dumas line Rubber Powered Flying Models dumas aircraft DUMAS PRODUCTS INC 9O9AMA E 17th St Tucson AZ 85719 Phone 520-623-3742 Fax 520-620-1329 E-MAIL dumas@azstarnetcom 122 Model Aviation LW] JE I L Ic SPCIALISTS IN COX AND AME ENGINES & CUSTOM PARTS COMPETITION ACCCESSORIES RACING WHEELS SOLID LINES CUSTOM NEEDLE VALVES OLD TIMER KITS & SUPPLIES COILS CONDENSERS PLUGS SILK QUALITY DOPE BRUSHES TRANSISTOR IGNITION SYSTEMS 112A TEXACO PLAYBOY SR KIT PH 619 761-0511 FAX 761-0937 VISA IMC WELCOME NO COD MINIMUM ORDER $1000 PLUS $300 SHIPPING INSURANCE $200 CUSTOM LETTER TODAV.TI-fE VINYL WRITE WAY AMA Since 1987 mail order company providing modeler EZ p ply custom lettering logos stars etc choices type styles & colors decal custom cut pre-aligned & pre-spaced premium vinyl planes boats trains toys etc Heights 1/4 12 Priced right eg AMA er 1 high $250. color style Find out what can Sample infopack free Please include #10 SASE inquiries U 16043 TULSA STREET GRANADA HILLS CA 91344 818-363-7131 - Mon Thur 1O-4pm PST EMAIL vinylrt@datadepotcom Plus $2 P/H Ca res add lax fuselage sides building stiff fuselage would still cover few approaches As part airplane fuselage should true light stiff built-up fuselages i/ sheet has served well years can dealt now Unless youre going build 35-size aircraft will need sheets longer standard 36 inches wider standard 3 inches However use modem adhesives satisfactory sides can made careful splicing Rather quarter-grain wood usually look 4-5 lb/cu ft A-grain flat straight Accuracy critical never assume straight edge will remain straight after cut Cut long edge straightedge relieve stress lay out sidesmatching sheets ideal flaps However before layout check weight blanks end-to-end Put heavy end front Double-check dimensions wood Ive really good wood just short wide enough concluded litfie splicing right spot acceptable length adjustment always front right plywood doubler essentially filler area heavily contoured reinforced glass carbon good wood out itself serving useful purpose Ive seen various approaches stiffen fuselage rear wing back first eastern ladder approach certainly did make rigid structure also geodetic positioning formers significantly increasing number formers effective increase parts count weight After contemplating construction Aldrich Magnum built much like Free Flight model concluded very rigid light structure can achieved paying attention certain details key fonners Connect top fuselage bottom providing torsionally stable section crutch used sure place formers upper lower fuselage shells molded blocks directly connected crutch critical Years ago thought cross-section rear increased stiffuess would also increase did point inch stabilizer leading edge practical limit increase stiffuess proportional increase width marked strength increase can obtained reinforcing structure aft stabilizer leading edge establish box section area use area doubler 1/s plywood lightening holes runs chord stab elevators sides vertical former stab leading edge just ahead elevator trailing edge mounting plate Yis plywood tail wheel wire locks above pieces forming rigid box next column Ill continue construction techniques look build light structure *
Edition: Model Aviation - 1997/05
Page Numbers: 120, 121, 122
CONTROL LINE AEROBATICS RECENTLY ACQUIRED some perfect quarter-grain wood Ive ever Riley Wootens Lone Star Balsa supplied originally ordered wing rib stock such beautiful wood use other things ready start new Caudron built-up stabilizer/elevators Since prefer flat stab light quarter-grain A6 wood seemed excellent choice stiff light stab important honest-flying airplane thought perhaps could adjust interior structure take advantage super-stiff skin latest stab utilized outline inforced 007 carbon main spar ribs arranged geodetic pattern used Dremel tool Swiss cheese internal structure gram saved juncture order 24 grams because weight required sustain optimum center gravity moment multipliers closed structure top sheet flat surface After pausing glue set checked flatness stab long straightedge goal have no light surface stab wasnt perfectthe tips out 015 inch wasnt much sol started what odyssey Since surface sheeted much internal support sand very carefully long foam block best choice sort project sanded tips side center other thought would very straightforward evaluated sanding thought needed sand little After few passes realized something strange going onthe stab bowing away area sanded stiff stab tip-to-tip torsionally sol didnt understand next corrective action soak structure ammonia pin structure surface opposite set bow original bow initially leveled returned finally realized problem perfect wood nature quartergrain irregular layers stress-relieving wood sanded bowed didnt know since Id never acceptable quarter-grain wood moral story use good A-grain wood construction built-up surfaces rather long introduction focus selecting wood specific spots airplane will make best overall model along few construction hints Using four lhicu ft contest wood always best area airplane dont get wrongIll take light stuff can get start ribsif theyre accurate can determine strong wing will always look light /16 quarter-grain wood Grade wood weight hardness/stiffness Generally heavier wood should outboard panel ribs stiffest/hardest wood should center ribs wood allocated proper 120 Model Aviation Strickland N Hollywood CA built Brodak Galaxy wife Sylvia Shes thrilled Magnum 28 34 ounces Sig finish Gene Martine known classically-executed design Randy Smith SV-11 PA 40 tuned pipe top 20 Nats Wynn Pauls latest PAMPA Wagonsuccessful design took years develop Seventh NatsPA 40 pipe Don McClave created another VSC award-winner Fierce Arrow Tissue clear finish elegant simplicity Has Fox 35 locations lay out rib patterns have accept some wood may go scrap paying attention graindo squeeze extra rib angling across grain Keep running lengthwiselchordwise unusual stress can set up wing Ensure outlines accurate cutouts spars etc good fits lightening holes rounded use straight-line connections area wing will shatter heavy impact remainder wing ribs choose wood youre going use position heavier sheets outside thickness use 1/16 smaller airplanes 077 Lone Star Balsa piped 40s above remainder wood will Agrain Sheets should flexible conform curvature ribs best weight order six pound stock because softer wood although lighter has tendency dip between ribs molded leading edges sand male mold until get shell installed several coats dope wing normal planked leading edges should carefully sanded foam blocks Pay special attention laying out sheets grain should run parallel leading edge molded conventional planked wings trailing-edge stock run grain spanwise As wing assembled will minimum stress induced structure reducing tendency warp flaps Ive changed choice wood grain weight etc throughout years Flaps have stiff must have same amount flex sounds odd though stiff can flex predictable honest airplane depends good flaps flexes other model will have rolling tendency will able trim out difference flap flexibility marked roll will present some degree weather flexibility difference subtle roll will manifest itself heavy weather Pick finn straight-grain wood use matched sheets Again 6-8 lb stock will fine Lay out sheets grain runs parallel trailing edge ensures less change internal stress flap sanded grain layouts matching sheets should mirrored method use shape flaps described Ted Fancher Model Aviation years agousing three sizes tube/wire form sanding jigs example 3/ sheet start tube hinge line trailing edge makes first triangle Flip surface use 1A wire trailing edge will produce triangular section trailing edge centered hinge line very careful flaps center down trailing edge wing dont will able trim model could devote entire column great new kits value priced $1795 available better hobby shops around world available locally order direct Include $450 shipping kit $650 two kits Foreign orders contact us foi actual shipping full line catalog $200 ENGINEERING CORP 1431 CHAFFEE DR SUITE #3 q1HERR TITUS VILLE FL 32780 407-264-2488 May1997 121 Five Fantastic Flying Favorites Worlds Leading Manufacturer Laser Cut Rubber Powered Model Aircraft 1937 QUAKER 84 L*Authentic Waterslide Decalas* Plus 5Li9 SPECIFICATIONS Engine 50 61 2 cycle 70 80 4 cycle Radio 3-Channel B & M MULJIL Co 290 W 1050 N LAYTON UT 84041 Phone 801-544-5689 Send $300 Color Brochure Models UT RES ADO 6125% TAX Laser Cut Rubber Powered Flying Models Kit #201 Over 70 Laser Cut Parts Kit #202 Over 60 Laser Cut Parts Kit #203 Over 50 Laser Cut Parts Kit #204 Over 50 Laser Cut Parts Kit #205 Over 50 Laser Cut Parts Introducing five laser cut kits biggest new name Free Flight Aircraft.Dumas Products walnut scale 17- 1/2 wing span models come Precision Laser Cut Parts hand selected balsa injection molded propeller FAt Contest rubber plastic wheels vacuum molded plastic parts full color peel stick decal set light weight colored tissue comprehensive plans instructions rubber powered kit Call today 1-800-458-2828 Ext 800 ask information packet Dumas line Rubber Powered Flying Models dumas aircraft DUMAS PRODUCTS INC 9O9AMA E 17th St Tucson AZ 85719 Phone 520-623-3742 Fax 520-620-1329 E-MAIL dumas@azstarnetcom 122 Model Aviation LW] JE I L Ic SPCIALISTS IN COX AND AME ENGINES & CUSTOM PARTS COMPETITION ACCCESSORIES RACING WHEELS SOLID LINES CUSTOM NEEDLE VALVES OLD TIMER KITS & SUPPLIES COILS CONDENSERS PLUGS SILK QUALITY DOPE BRUSHES TRANSISTOR IGNITION SYSTEMS 112A TEXACO PLAYBOY SR KIT PH 619 761-0511 FAX 761-0937 VISA IMC WELCOME NO COD MINIMUM ORDER $1000 PLUS $300 SHIPPING INSURANCE $200 CUSTOM LETTER TODAV.TI-fE VINYL WRITE WAY AMA Since 1987 mail order company providing modeler EZ p ply custom lettering logos stars etc choices type styles & colors decal custom cut pre-aligned & pre-spaced premium vinyl planes boats trains toys etc Heights 1/4 12 Priced right eg AMA er 1 high $250. color style Find out what can Sample infopack free Please include #10 SASE inquiries U 16043 TULSA STREET GRANADA HILLS CA 91344 818-363-7131 - Mon Thur 1O-4pm PST EMAIL vinylrt@datadepotcom Plus $2 P/H Ca res add lax fuselage sides building stiff fuselage would still cover few approaches As part airplane fuselage should true light stiff built-up fuselages i/ sheet has served well years can dealt now Unless youre going build 35-size aircraft will need sheets longer standard 36 inches wider standard 3 inches However use modem adhesives satisfactory sides can made careful splicing Rather quarter-grain wood usually look 4-5 lb/cu ft A-grain flat straight Accuracy critical never assume straight edge will remain straight after cut Cut long edge straightedge relieve stress lay out sidesmatching sheets ideal flaps However before layout check weight blanks end-to-end Put heavy end front Double-check dimensions wood Ive really good wood just short wide enough concluded litfie splicing right spot acceptable length adjustment always front right plywood doubler essentially filler area heavily contoured reinforced glass carbon good wood out itself serving useful purpose Ive seen various approaches stiffen fuselage rear wing back first eastern ladder approach certainly did make rigid structure also geodetic positioning formers significantly increasing number formers effective increase parts count weight After contemplating construction Aldrich Magnum built much like Free Flight model concluded very rigid light structure can achieved paying attention certain details key fonners Connect top fuselage bottom providing torsionally stable section crutch used sure place formers upper lower fuselage shells molded blocks directly connected crutch critical Years ago thought cross-section rear increased stiffuess would also increase did point inch stabilizer leading edge practical limit increase stiffuess proportional increase width marked strength increase can obtained reinforcing structure aft stabilizer leading edge establish box section area use area doubler 1/s plywood lightening holes runs chord stab elevators sides vertical former stab leading edge just ahead elevator trailing edge mounting plate Yis plywood tail wheel wire locks above pieces forming rigid box next column Ill continue construction techniques look build light structure *
